Carriage bolts are a unique design with a squared shank that locks within the hole, preventing rotation and guaranteeing a secure fastening. These bolts consist a cylindrical head with a square or hexagonal recess, formulated to be driven by a wrench or socket. DIN 603 carriage bolts conform with the stringent standards set by the German Institute … Read More


DIN 931 defines the requirements for hexagonal head bolts. These fixings are commonly used in numerous applications, from structural engineering tomanufacturing. The DIN 931 standard covers sizes such as diameter and thread form. It also defines requirements for material grade and tolerances. Adhering to DIN 931 ensures reliable connections and b… Read More